• ZIP64 format extensions supported. No limitations on size for files within a .zip, or the total size of a .zip.
• No limitations on the number of files that may be contained within a single .zip (this is a ZIP64 feature).
• Can read/write Zips with WinZip-compatible AES strong encryption.
• Supports Unicode filename zip file format extensions.
• Events for zip/unzip progress monitoring.
• Zip an entire directory tree.
• Append entries to a Zip from in-memory data.
• Create or open in-memory Zips.
• Create self-extracting executables.
• Create password-protected Zip files.
• Unzip only files that match a filename pattern.
• Option to discard path information when zipping.
• Option to append a path prefix when zipping.
• Option to create self-extracting EXEs with or without interfaces.
• Ability to customize icon and interface when creating an EXE.
• Ability to specify an auto-run file when creating an EXE.
• Ability to specify a pre-defined unzip directory for an EXE.
• Handles Unicode filenames.
• Provides in-memory access to compressed or uncompressed data.
• Easy FirstEntry/NextEntry methods for iterating over a Zip.
• Can embed Zips in your own EXEs.
• OpenMyEmbedded opens the Zip that has been embedded in the caller's EXE.
• Set exclusion patterns when zipping.
• Option to specify a target directory and discard path information when unzipping.
• Can unzip only files that are newer.
• Read/write comments within a Zip.
• Ability to inflate directly to in-memory byte array or string.
• Includes a Bz2 object/class to create or decompress the .bz2 file format.
• Includes a GZip object/class to create or decompress the .gz file format.
• Includes a Unix compress object/class to create or decompress the .Z file format using LZW compression.

A 1-Developer Bundle, which includes licenses for all components and libraries offered by Chilkat, can be purchased for $289